The results suggest that β-sitosterol acts on multiple targets in breast cancer and identify PGR, a target not strongly favored by docking alone, as an important therapeutic target revealed through extended molecular dynamics simulation.
Abstract
Breast cancer is a complex disease comprising multiple deregulated signaling pathways, oxidative stress, metabolic rewiring, and resistance to therapy. The multi-target therapeutic efficacy of β-sitosterol against breast cancer was studied using an integrated approach that combined network pharmacology, molecular docking, molecular dynamics simulations, and ADMET. Out of which 98 common targets were identified between β-sitosterol and breast cancer, wherein PPARG, TNF, ABL kinase, HIF1A, ESR1, PGR, PPARA, MAPK8, AR, and ESR2 are the key hub genes. The enrichment analysis showed that β-Sitosterol had strong binding affinities towards ABL kinase (-9.7 kcal/mol), PPARA (-9.5 kcal/mol), MAPK8 (-8.7 kcal/mol), and PPARG (-8.6 kcal/mol). Indeed, molecular dynamics simulations were performed for 1000 ns at the molecular level, and the progesterone receptor (PGR) proved to be the most dynamically stable target, as the β-sitosterol-PGR complex remained stable throughout the simulation. The predicted ADMET profile was good. The results suggest that β-sitosterol acts on multiple targets in breast cancer and identify PGR, a target not strongly favored by docking alone, as an important therapeutic target revealed through extended molecular dynamics simulation.
Findings support the hypothesis that ICA may serve as a valuable natural compound for treating HER2‐driven breast cancer; it requires further experimental validation.
Computational predictions of potential interactions between selected cinnamon-derived phytochemicals and cancer-associated signaling proteins are provided and are consistent with the preliminary observation that the crude cinnamon extract exhibits antioxidant activity and cytotoxic effects in colorectal cancer cell lines.
R. Raut, S. Anwar, Reem Alromaihi et al.· Current Issues in Molecular...· 0 citations
Genistein is a promising multitarget EGFR‐modulating compound that warrants further experimental validation through in vitro and in vivo studies, according to an integrated computational approach.
N. Lonikar, Sameep Sonvane, N. B. Bavage et al.· ChemistrySelect· 0 citations
Cannabidiol (CBD), the principal non-psychoactive phytocannabinoid of Cannabis sativa, exhibits diverse pharmacological activities through interactions with multiple molecular targets. Thus, breast, colorectal, and lung cancers arise from distinct molecular mechanisms. This study investigated the potential multi-target pharmacological mechanisms of CBD using an integrated approach combining network pharmacology and molecular docking. CBD-associated targets from three prediction platforms were intersected with disease-associated genes for each cancer type, yielding 143 overlapping targets that formed a significantly enriched protein–protein interaction network. Maximal Clique Centrality (MCC) analysis identified 10 hub proteins, including SRC, SIRT1, PTGS2 (COX-2), PPARG, NFKB1, MMP2, IGF1R, ESR2, ESR1, and EGFR, which represent key regulators of hormone signaling, inflammation, cell proliferation, and tumor progression. Molecular docking against these targets, benchmarked using each protein’s authentic co-crystallized ligand, predicted predominantly moderate binding affinities for CBD. Compared with the corresponding reference ligands, CBD generally exhibited lower predicted binding affinity, although comparable or slightly stronger scores were observed for PTGS2, ESR2, and EGFR. Independent validation using AutoDock Vina demonstrated overall agreement with the MOE docking results, supporting the robustness of the predicted binding profiles. Collectively, these findings suggest that CBD may exert its biological activity through coordinated modulation of multiple cancer-related signaling pathways rather than a single molecular target. By integrating pooled cancer-associated network pharmacology with co-crystallized ligand benchmarking, this study provides a computational framework for prioritizing biologically relevant CBD targets for future experimental validation. These findings should be regarded as hypothesis-generating rather than evidence of clinical efficacy.
Marlon C. Mallillin, Arkapravo Chattopadhyay, Irish Mhel C. Mitra et al.· Journal of Phytomedicine· 0 citations
Sarsasapogenin, a spirostanol sapogenin with reported activity against ERα-positive breast cancer cells, has no defined molecular target, and its metabolic fate has not been considered in computational studies of this compound class. Network pharmacology, biotransformation profiling, and multi-level molecular modeling were combined to address both questions. Of 108 targets shared between Sarsasapogenin and breast cancer, ERα gave the most favorable docking energy among ten hub proteins (-10.46 kcal/mol), against -8.73 kcal/mol for the reference modulator Bazedoxifene. BioTransformer predicted 16 metabolites, of which five phase-I derivatives retaining the spirostanol scaffold bound ERα within a narrow window (-10.01 to -10.30 kcal/mol). The representative metabolite BTM00010, a 6-hydroxylated derivative, retained affinity at -10.30 kcal/mol and formed a hydrogen bond to Val533 that is absent from the parent pose. Over 100 ns of simulation, all three complexes reached comparable plateaus in RMSD (0.20-0.30 nm) and radius of gyration (1.68-1.80 nm), and MMGBSA ranked them in the same order as docking (-47.30, -21.48, and -11.83 kcal/mol). Post-dynamics analysis showed lower collective-motion amplitude for the metabolite complex than for the parent, and a correlated-motion network closer to the parent than to the reference modulator. Predicted phase-I hydroxylation, therefore, does not abolish ERα engagement, which argues for evaluating biotransformation products alongside the parent compound in computational screening of plant sapogenins.
S. D. Thuong, T. Từ, N. Nguyễn et al.· Journal of Molecular Graphic...· 0 citations
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